Looks like this thread needs to be resurrected. I got around to thinking about how a fourth Evil Dead story would be handled, when the following popped into my head: which ending in Army of Darkness would be more suitable to pick up from, the theatrical release or the more post-apocalyptic alternative ending?
Personally, I think the original release would not be ideal. All movies have Ash as the loner... putting him in the urban setting of Detroit will really have him out of his element. Haivng Ash struggle to find signs of humanity in a post-holocaust environment would seem so much more appropriate. Plus imagine what the evolution of the Deadites could spawn in terms of creature types after all those years had passed.